Electro-mechanical filter having a plurality of tuning forks

摘要

An electro-mechanical filter is configured from a single thin metal sheet and comprises a base portion, at least four vibratory tines extending outwardly from the base portion, and a plurality of supporting members also extending outwardly from the base portion. The tines and supporting members are arranged circumferentially around the base portion in alternate relationship and extend from the base portion in parallel with each other. The tines may extend in either the same or the opposite direction as the supporting members. A piezo-electric element is coupled to each tine and the elements are differentially connected together to form a filter.